Compilare: main.cpp: In function 'int main()': main.cpp:27:12: warning: unused variable 'c' [-Wunused-variable] 27 | int k, c, st, dr, mij, i, j, sum = 0, last = -1; | ^ main.cpp:27:31: warning: unused variable 'j' [-Wunused-variable] 27 | int k, c, st, dr, mij, i, j, sum = 0, last = -1; | ^